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A planet revolves around the sun in elli...

A planet revolves around the sun in elliptical orbit of semimajor axis `2 × 10^(12 )`m. The areal velocity of the planet when it is nearest to the sun is `4.4 × 10^(16) m^(2)/ /s`. The least distance between planet and the sun is `1.8 × 10^(12)` m. Find the minimum speed of the planet in km/s.

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